Holder for lighting fixtures



July 24, 1923. V 1,462,692

R. A. L'ECUYER ET AL HOLDER FOR LIGHTING FIXTURES Filed Dec. 51 1921 Patented .luly 24, 1923.

ii: a S E 2 ROMULUS A. LECUYER, or CHICAGO, m) LE ROY s. MARKS, or OAK PARK, rumors,-

HOLDER FOB LIGHTING FIXTURES.

Application filed December 31, 1921.

To all whom it may concern:

Be it known that we, RoMULUs A. LEOUYER and LE ROY S. MARKs, citizens of the United States, residing at Chicago and Oak Park, in the county of Cook and State of Illinois, respectively, have invented a certain new and useful- Improvement in Holders for Lighting Fixtures, of which the following is a specification.

Our invention relates to the art of illuminating, and particularly that class wherein lighting units, equipped with shades, are used, and it has for its object to produce a shade holder of simple, strong, durable, and inexpensive, construction, which can be used and quickly operated for inserting or removing a shade.

Our invention consists of certain details of construction hereinafter set forth, pointed out in our claim and illustrated in the accompanying drawings, in which Fig. 1 shows a sectional view of our improved shade holder and a portion of a shade held thereby. The dotted lines indicate the position of one of the clamping members before it has been clamped upon the shade.

Fig. 2 shows an inverted plan view of our shade holder, the dotted lines indicate the various positions of the channels in their respective plates, and

Fig. 3 shows a detailed view taken on the line B-B in Fig. 2.

Referring to the accompanying drawings the reference numeral 10 is used to indicate the housing of our shade holder. This housing does not particularly differ from the housing in ordinary and customary use ex cept that it provides means. for receiving and supporting the various members which operate to function ,to produce the results desired. In this housing we have mounted, horizontally, a plate 11, in which we have provided a plurality of inwardly curving slots, all of which project inwardly from the outer periphery of the plate and areuniform. The construction of this plate with the slots is very clearly shown in Fig. 2, and the latter is rigidly mounted in its position.

A second plate 12 overlies the plate 11 and is secured thereto, for rotation, a lug 13 proiecting through a slot in the housing 10. The slot in the housing is identified by the numeral 1 1 and is adapted not only to permit the passage therethrough of the lug 13 but also to permit it a certain detailed longitudinal movement within the slot. The

Serial No. 526,430.

plate 12 is also provided with a plurality of inwardly projecting, and curving, channels, which register with their companion channels in the plate 11. The numerals 15 indicate a plurality of housing, clamping, members which are loosely suspended from the upper part of the housing, their shafts projecting downwardly through the companion channels in the plates 11 and 12, a pair of these companion channels operating to engage, and control, the shaft of one of the depending clamp members. .011 the ends of the depending clamp members we have, preferably, formed enlargements which are designed to engage the inner surface of the bowl when the parts have been moved to the proper position for holding the bowl in the holder.

In practical operation the lug 13 is moved, a very limited movement, to the left. As the channels in the plate 11 are fixed in their position, by reason of the plate itself being standard, and as the plate 12 rotates, carrying with it the registering channels cut therein, and as the shafts of the depending clamping members are threaded within their respective registering channels, it is obvious that the rotating movement to the left of the plate 12 will move all of the clamping members inwardly to the position shown in the dotted line in Fig. 1. The bowl 16 is then inserted until its upper lip engages the lowered surface of the plate 11. The lug 13 is then moved to the right as far as possible, thus moving outwardly, in a pivotal movement from their respective mountings the clamping members 15, until they engage the inner surface of the bowl, as shown in Fig. 1, and this effectually clamps the bowl within the holder.

The disclosure shown in the drawings is our preferable construction, but it must be understood that minor changes may be made without in any manner altering the spirit of our invention, and we do not wish to be limited in the scope of our protection other than is provided by the appended claim.

Having thus described our invention what we claim and desire to secure by Letters Patent of the United States is:

A shade holder comprising a housing to receive the lip of a bowl to be held thereby; a plate with channels therein rigidly and horizontally secured in the housing; a second plate with channels therein to register with the channels in the first mentioned plate rotatably secured above the first mentioned plate; depending clamping members loosely secured to the housing; their shafts projecting downwardly through the C0111- 5 panion channels in the aforesaid plates; means to rotate the second mentioned plate, the channels in the two plates registering to move, simultaneously, the clamping members outwardly or inwardly according to the direction of the rotating of the second mentioned plate, substantially as shown and described.

ROMULUS A. LECUYER.

LE ROY S. MARKS. 

